package java51_17;

public class StrTest4 {

	public static void main(String[] args) {
		StringBuilder sb = new StringBuilder();
		sb.append("1234567890");
		sb.append(1 > 2);
		sb.append("we love java");
		System.out.println(sb);
		sb.delete(4, 7);
		System.out.println(sb);
		System.out.println(sb.reverse());
	}

}
